MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix44:D5:F2:D0:00:00 /28
Vendor addressRoom 816, Building A, Yuanzheng Venture Building, No. 19 Langshan Road, Xili Street, Nanshan District ShenZhen Guangdong CN 518000
Country🇨🇳 China
RegisteredMay 16, 2019
Block range44:D5:F2:D0:00:00– 44:D5:F2:DF:FF:FF
Address capacity1,048,576
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Example addresses in this block
Where this block sits
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neocontrol soluções em automação
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Joint-Stock Company Research and Development Center "ELVEES"
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Nation RFID Technology Co.,Ltd. holds 1 registered blocks in the IEEE registry, ranking #26,734 of 33,421 organizations by block count.